<select name="tipo_con" size="1" id="tipo_con">
   	<option value=""></option>
	<option value="Planta" <? if($tipocontrato == "Planta") echo "SELECTED";?>>Planta</option>
    <option value="Honorarios" <? if($tipocontrato == "Honorarios") echo "SELECTED";?>>Honorarios</option>
    <option value="Contrato" <? if($tipocontrato == "Contrato") echo "SELECTED";?>>Contrato</option>
</select>